Ключевые слова: ancient, ancient rome, antique, arch, archeology, architecture, balkan, brick, building, civilization, complex, culture, day, destination, emperor, emperor galerius, europe, european, felix, felix romuliana, galerius, gamzigrad, heritage, historic, historical, history, imperial, landmark, masonry, monument, old, old ruin, palace, residence, roman, rome, romuliana, ruins, serbia, site, stone, tourism, travel, unesco, wall, world, zajecar,